let p be odd prime p=8k+r 1<=r<=7 prove that
Last edited by yeke; Apr 25th 2011 at 09:03 AM.
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Originally Posted by yeke let p be odd prime p=8k+r 1<=r<=7 prove that (-1)^((p^2-1)/8) = (-1)((r^2-1)/8) Are you sure this isn't Form p^2 - 1 = 64k^2 + 16kr + (r^2 - 1). Divide this by 8 and plug it into the LHS of your original statement and see what cancels. -Dan
Originally Posted by topsquark Are you sure this isn't Form p^2 - 1 = 64k^2 + 16kr + (r^2 - 1). Divide this by 8 and plug it into the LHS of your original statement and see what cancels. -Dan yes thats it. but i didnt understand about forming p^2 - 1... how am i gonna do that?
Originally Posted by yeke yes thats it. but i didnt understand about forming p^2 - 1... how am i gonna do that? So -Dan
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